Syllable-writing machine.



P. DE GARSALADE DU PONT.

SYLLABLE WRITING MACHINE.

APPLICATION FILED JULY 19, 1909.

1,024,679. Patented Apr. 30, 1912.

3 SHEETS-SHEET 1.

P. DE CARSALADE DU Fob IT.

SYLLABLE WRITING MACHINE.

APPLICATION FILED JULY 19, 1909.

1,024,679. Patented Apr. 30, 1912.

" 3 SHEETS-SHEET 2.

. DE GARSALADE DU PONT.

SYLLABLE WRITING MACHINE APPLICATION FILED JULY 19, 1909.

Patented Apr. 30, 1912.

3 SHEETS-SHEET 3.

l 'lllllllllllllll IIIIIIIIIIIIIIIII: llllllllllllllllllllll UNITED STATES PATENT OFFICE.

PAUL Di CARSALADE DU PONT, OF PARIS, FRANCE, ASSIGNGR OF ONE-HALF 13 0 GABRIEL ESCARRAS, 0F IFARIS, FRANCE.

sYLLABLn-wBIrInG MACHINE.

Specification of Letters Patent.

Patented Apr. 30, 1912.

To all whom it may concern: V

Beit known that I, PAUL on CARSALADE DU PoN'r a citizen of the French Republic, and residing at Paris, France, have invented certain new and useful Improvements in Syllable-Writing Machines, of which the.

printing mechanism serves for executingtwo distinct functions, it first has to bring the different type levers .to the printing point above the paper and then to print the characters in striking the paper by the types.

Referring to the accompanying drawings, Figure 1 is a plan view of the mechanism; Fig. 2 is a section on line AB of Fig. 1; Fig. 3 is a section on line C-D of Fig. 1; Fig. 4 is a section on line EF of Fig. 1; Fig. 5 represents on a larger scale and in cross section one of the key-boards, which is seen parallel with the line A-B of Fig. 1; Fig. 6 is a section on line M-N of-Fig. 5;

Fig.7 is a section on line GH of 6; Fig. 8 is a section on line I-J of Flg. 6;

Fig. 9 is a section on line K-L of Fig. 6; Fig. 10 is a detail illustrating in perspective view one of the type-levers.

' The typewriting machine embodying my invention includes as many separate keyboards as there are characters which can be simultaneously printed; in the example shown it has been supposed that there can be printed simultaneously eight different. characters and the corresponding key boards are designated by a, a to a. It is clear that the various key-boards do not comprise all the same number of fingerkeys 6.

Fig. 5 illustrates in longitudinal section one of the key-boards, a Fig. 6 showing the same in horizontal section, and Figs. 7 8 and 9 representing cross sections of said key-board. Each finger key I) is rigidly connected with a rod 0 (Fig. 9) and all the rods 0 of thesame key-board a? are situated on the same vertical plane (Fig. 6); each of said rods 0 terminates at its lower end by an enlarged part d which has at the left hand side an indentation f and at the right hand side an arm a. All the arms 0 bear almost simultaneously upon a rail g which is fixed upon a shaft h parallel to said rail and adapted to be oscillated by said rail.- Said shaft therefore will I oscillate as soon as one of the finger-keys is struck and return to its normal position if said finger-key is released, which itself is returned to its normal position by means of spring z','a spring is being provided for effecting the return of railg and shaft 723. The rod 0 in descending further acts with its indentation f upon a second rail m whereby a second shaft, n, is oscillated which is arranged parallel with shaft 71?. On the release-of the finger-key b said shaft of is returned to its normal position by the action of a spring 0 which acts upon a lever p keyed upon one end of the shaft, so that the upper end of this lever comes in contact with an abutment piece 9. The indentations f of the enlarged parts d of the rods 0 are arranged so that their upper edges form together an oblique line mounting from theleft to the right (Fig. 5) wherefrom results that, although the shaft h oscillates immediately when a-finger-key is being, struck, the oscillation of shaft n is somewhat delayed in proportion to the position of the finger-key on the key-board, that is to say, if on the depression of the finger-key b which is situated at the left hand end of the keyboard the shafts k and n oscillate the motion of shaft 01. is gradually delayed for every succeeding finger-key so that for the extreme right hand end key the shaft n will. begin its oscillating motion only when shaft 7: has nearly completed its motion.

Upon one of the ends of shaft 72 an angle lever 1' is keyed, one arm of which carries loosely a bevel pinion (see Fig. 7) while its other arm carries a roller 15 which is destined to act upon the rail 16 of the rinting frame when the oscillating motion of the shaft 71. is nearly completed. The pinion s meshes with two toothed segments '0 and w, forming with the same a differential gear; said segments are loosely mounted upon shaft h, the outer, segment '1) being connected with shaft 00. whose end is formed by a toothed wheel 3 Upon the correspondin end of shaft a a cat'ch. '2 is provided which is destined to enga geowith the teeth of segment 1) and to stop said segment. Upon the shaft a there is further fixed (see Fig. 8) opposite the segment w a cam 3 which is adapted to bear against a blade spring 4. so as to push the nipple 5 of said spring between two adjacent teeth of segment- '1! which is thus stopped; the ram 3 pushes said nipple between the teeth of the segment 7.! it the shaitt a in normal position.

ivhenever a linger-hey i) the corrcspomling rod ately upon shaft a? takes the pinion s is depressed, will act immedi- Whieh in revolving along which rolls upon the segment 1/: and, this segment being stopped by cam 23, comu'mnieates a revolving motion to the segment o whereby the toothed wheel revolved until the indentation f of the rod 0 acts upon the rail m and causes the oscillating motion of shaft 72."; the cam 3 being moved a my From the blade spring it, segment w is released and simultaneously the catch 2 immobilizes the segment 1), whereupon the pinion a revolving upon the segment 1) takes along the segment 21;; the movement of segment "(,0 is however not utilized in the apparatus, said segment serving merely to revolve the pin ion .9 around its axle during the first part :t the movement of shaft 7a. Thereupon, shaft 72 continuing its oscillating motion, the roller 3 is lifted to come in contact with frame a, the drive y, not partaking in said motion. The fingenkey i) is released when it has reaeheiil its lowest position and the springs 11, /l' 0 bring the various parts back to their normal positions.

The types are mounted upon semi-circular bars (3 1 and connected by a radial arm 7 with a tube 8 which terminates at its other end inn toothed wheel 9, There areproviified as many semi-circular type bars 6 as there are liey-boards a, that to say eight in the present case and consequently eight tubes 8 and toothed wheels 1); four Ofl said tubes 8, S 8, S" are telescoped "the one in the others and airaiiggr-il upon the right hand side of the machine (see Fig. 4) while the other four tubes 8", 82,8 8, which are also teleseopcd the one in the others are arranged upon the left hand side of the machine. the eight type bars (3 being thus all arranged at the center of the machine as shown in hip". 'l. The arms 7 ol the type bars are guided by means of nine circular guides 10 tixcd upon an axle lfl which is parallel with the tubes 8 and said guide piece are maintained at the required distance apart by means of rings which are of the same thichncss as the arms 7. it screw 12 serves to .in'unoliiilize all the parts. The outer guides in and the outer type bars (3 are of slightly greater diameter than the guides and type bars situated at the center so that the outer surface formed by all the ty iie bars corresponds to the surface 01" the cylinder whereupon the paper leiis held upon which l l l l I J l the characters are to be printed. This cylinder is arranged at a very small distance of the type bars so that the type bars have to be advanced for a short distance only to simultaneously press upon the paper (see Fig. The arm divides each type bar into two equal parts, one part com- ]T1llSl1l{ f the small letters and the other the capital letters. in normal position the arm 7 stands above the printing point (see Fig.

in order to bring any of the types to the rrinting p sition a revolving motion has to be communi i'ated to the type-bar either in one or in the other direction. said revolving motion being ellecled by means of eight. wheels ;7 ;i,- i 2%). Each of said nhoclsnicslns with a pinion 15. 153-15 which are arranged in two series, one at each side oi? the machine and mounted on tubula' afilcs of convenient dian'ieter which are telcscoped the one in the others and carry at their other ends pinions 16 16 and 16 and 16', 16", 16 lo respectively which mesh with two series of pinions respectively 9, 9 9 9", and 9", 9. fl 9*. tudinal slot so that it can bewlis'plaeed upon its tubular axle in longitudinal direction,

being connected with the same by a proecting arm, a pm or 111 any other suitable manner.

The various pinions are conneeted with a shifting mechanism which is not sl'lOWIl in the thawing and which is operated in any suitable manner from a finger key with the object to shift the type levers so that the capital let tors and signs are printed instead of the small letters. if the said finger hey is depressed, the eight pinions are simultanwiusly displaced so that they mesh with the opposite ends of the wheels l lerct'rom follows that the rotation of said pinions is reversed and consequently the type bars turn in the other direction as before. The tour tubular shafts of the pinions 5 to 15 are mounted on an axle 17 which is fl't. at one end and fixed with its other end to the frame of the machine, the tour tubular shafts of the pinions 15 to 15 being mounted on an axle 18 Which is also lixed to the frame of the machine. Said axles l7, 18 which are situated the one in the prolongation of the other serve as pivots for the printing frame. This printing frame. consists of a cross bar it which is situated above the four rollers i, and of the two pivots l7 and 1.8, and further of the shalt l] which serves as upper cross stay and of the eight tubular shafts 8 of the typehars (3. Spiral springs 19 disposed ateither end oi the cross bar u maintain said bar in the normal position. Stops 20 serve to limit, the movement of the printing frame. If

szndframe is in its normal position there Each the l iions 15 has a longi is a small space left free between the lowest point of the type bar v6 and the paper sheet 14.

The printing operation is easy to understand. To simultaneously print a certain number of letters, the corresponding finger bars 6 which thus are brought into the' proper positions, so that, when at the end of the descending movement of the finger keys the rollers t simultaneously lift the printing frame u, the corresponding characters aresimultaneously printed upon the paper sheet 14; as soon as the finger keys are released, all the parts return to their normal position, the radial arms 7 reassuming the vertical position shown in Fig. 2,

the printing frame u being at the same time swung back by means of the springs 19 so that it rests again upon the abutments 20.

A syllable-writing machine in which for each group of keys a type sector is provided and in which the juxtaposed type sectors are mounted upon revolving shafts which are independent the one of the others and telescoped the one in the others, comprising in combination one driving shaft for each group of keys, an angle lever at each end of said axle, a planet pinion of a differential carried-in the end of the one arm of said lever and a roller mounted at the end of the other arm, a beveled pinion of the differential mounted upon the driving shaft, an auxiliary shaft mounted in alinement with the driving shaft, a second pinion of thedifterential keyed upon said auxiliary shaft and a pinion mounted on the end of said auxiliary shaft, stops for immobilizingthe' two beveled pinions of the differential, an oscillating frame carrying the axles of the type sectors, means for operating said type sectors, pinions mounted upon the axle around which said frame plvots, telescopic tubes in said frame and toothed crowns mounted upon the ends of said telescopic tubes and meshing with the pinion of the type sectors, substantially as described and shown and for the purpose set forth.

In witness whereof I have hereunto set Witnesses FERDINAND Nuson, Rumour Gus. 

